You don't have the belt routing under the hood? I do have a couple of pics, but they aren't the normal belt routing pics. I can take a picture of my routing label if you can't get it figured out, but I am going to post a pic of both california emissions and federal. This should get you close, but I don't know how much the belt routing changed between the LB7 and LBZ.
one of my pulley wheels is bent and it fell off in stop and go rush hour traffic yesterday.... huge pain. how the **** did the wheel bend? its the one clockwise along the belt from the alternator. it is completely seized... now i have to go out in the -5ºf and attempt to fix it... havent ever needed to change a belt before do i need a special torque wrench for the tensioner arm?